Automatic stop-signal system.



0. L. IUNGERIOH. AUTOMATIC STOP-SIGNAL EYSTEM.

'- APPLICATIOK FILED MAY 21, 1909. I

Patented Apr. 19,1910. 4 7

C. L. tmemcm AUTOMATIC STOP SIGNAL SYSTEM.

' T A PLIQATIQII TILED my 21,1909.

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Patented Apr. 19,1910.

To all whom it may concern: l

UNITED STATES orricn.

CALVIN LUTHER IUNGERIGH, OF HARRISBlJ'RG, PENNSYLVANIA.

Annemar e STOP-SIGNAL SYSTEM.

955,406. Application filed ma 21,

Be it lmown that I, CALVIN L. IUNcnmon, a citizen of the'United- States, residing at Harrisburg, in the county of Dauphinand State'of Pennsylvania, have invented a new and useful Automatic Stop-Signal System,

of which the following is a specification.

- train, from any This invention relates to apparatus for automatically applying air brakes when a cause, passes a danger signal.

Therin'vention is more particularly designed as'an improvement upon the mechanism disclosed in Patent N 0. 841,403 issued to meon' January 15, 1907. l One of the objects of the present invention is to provide improved mechanism designed to be actuatedby the tripping plates been'devised,

The invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims.

In the accompanying drawings the {preferred form of the invention has een shown.

In said drawings, Figure 1 is a side elevation of an air brake signal apparatus embodying the present improvements. Fig.-

.2 is a plan view of the engineers brake valve. Fig. 3 is an elevation of the mechanism utillzed. for transmitting motion from the tappet lever to they valve.

Referring to the figur s by characters of reference A designates-a standard on which is mounted a semaphore arm a designed to be. actuated in any preferred manner, there being cam or tappet plates B located adjacenbthe track C and designed to be Qa-aised tddiiferent elevations, accordin to the position of the semaphore arm. T ese' parts constitute no part of the present in-;

1909. Serial No. 497,409.

1 vention but have beenset forth in detail, in g the patent vhereinbefore referred to.

r The present invention resides, in the lmeans employed for actuating the brake locomotive. This mechanism segmental gear 1 mountedfor partial rotation upon the cab of the locomotive, and having a tappet arm or lever. 2' extending move against the tappet plates or cams B and to be actuated thereby, the degree of 1 movement of the arm 2 being regulated by g the elevation of the tappet plates or cams B.

gear 3 secured to the lower end of a shaft 4 which is journaled upon the cab,-there being a gear 5 at the upper end of this shaft second or driven shaft 7 ther gear 8 is which the usual cured.

The ordinary form been indicated at D.

valve, normally .in a predetermined osition. When the tappet plate or cam reaching the same will ride thereover with a wiping action, said arm or lever 2 being thus caused to swing rearwardly and upwardly and causing the segmental gear 1 to actuate the gear 3. 'Motion is thus transmitted. through the-getirs'and shafts shown in .Fig. 3 to the valve stem 10 and said valve is thus operated to partly. or entirely apply the brakes, this being dependent upon the heretofore pointed out, is controlled by, the elevation of the tappet cam or plate B in the path thereof. As shown at .12, the gear 8 may. beprovided with a clutch whereby it can be thrown into or out of operative relation with the shaft 7., Also if desired and as shown in Fig. 1, the lever 2 .may be rovided with a separate end portion 13 a justably con- I nected to it by a sleeve -or-.- turnbuckle 14 l and jam nuts,15.

i i By providing mechanism suchias herein l described, danger of breaking or otherwise valve which is located in the cab of the includes a downwardly therefrom and designed to The segmental gear 1 meshes with a beveL and which meshes with a 'gjar 6 upon amovement of the arm or'lever 2 which, as

Specification of Letters Patent. Patented Api. 19, 1910- '75 secured to the shaft 7 and meshes with a;. gear 9 which is carried by the valvei'lOtQ operating lever 11- is 86 g of air brake It is of course to ,be understood that'the weight of the armor lever 2 is sulficlent to maintain the mechanism, incl'udin'gl the is g elevated however the arm or lever 2 upon injuring the mechanism as a result of the sudden contactof .the parts 2 and B, is reduoed to the minimum, this being due primarily to the wiping action of the arm or lever 2 upon the cam or tappet B and to the parting from the spirit or sacrificing the advantages of the invention. What is claimed is i 1. The combination with an engineers valve and a gear carried thereby, of a power transmitting shaft mounted for rotation adjacent the valve, a shaft int-erposed'between the valve and the first mentioned shaft, gears upon the shafts for transmitting motion from one shaft to the other, and to the valves, a shifting element, a tappet arm movable against said element and arranged .to swing in a vertical plane, a segmental gear on the valve, means for shifting the gearing to uncouple the valve gear therefrom, a tripping element, a tappet arm movable thereagainst and arranged to swing in a vertical plane, an adjustable extension upon the arm, and means for transmitting motion from said arm to the shaft.

In testimony that I claim the foregoing -as mv own I have hereto affixed mv 81 11:]-

1! 7 v If? ture in the presence of two witnesses.

CALVIN LUTHER IUN QE RICH. Witnesses:

EDWARD M. VINTER. M. B. ODONNELL. 

